The victim firm would definitely notice, they’d tell the FCC, and their investigators will show up with a device that literally points them to wherever the jammer is. If you do this for stupid, silly reasons you will get fined[1], if you do it in commission of another crime you will probably get made an example of. It doesn’t matter how evil you are, it’s hilariously easy to get caught doing this.
> “Mr. Bojczak claimed that he installed and operated the jamming device in his company-supplied vehicle to block the GPS … system that his employer installed in the vehicle,” the FCC decision stated.
I'm not surprised that somebody would try and do this. However it is just so stupid at every level.
Sorry, you are correct. As soon as the subject of HFT came up I was thinking about London and the things they do to reduce latency to the exchanges in North America. It's too late to edit or remove my previous message.
[1]: https://www.nj.com/news/2013/08/man_fined_32000_for_blocking...